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Finding the Fourth Proportional to 668,576.16, 1,002,866.40 and 169,940.16

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Solution

The fourth proportional to 668,576.16, 1,002,866.40 and 169,940.16 is: 254,910.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,576.16 : 1,002,866.40 = 169,940.16 : x
  2. Step 2: Convert to fraction form
    668,576.16/1,002,866.40 = 169,940.16/x
  3. Step 3: Cross multiply
    668,576.16x = 1,002,866.40 × 169,940.16
  4. Step 4: Simplify right side
    668,576.16x = 170,427,276,474.62
  5. Step 5: Solve for x
    x = 170,427,276,474.62/668,576.16
  6. Step 6: Final answer
    x = 254,910.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.